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2.
When a person has been playing video games constantly for more than five hours and seems to be in a state of intoxication.
"Dude, I got one upped on Counter-Strike last night."
"You need therapy."
by XeroHedgehog June 03, 2004
 
1.
What has happened to a person when they have been outdone by another
Person A: "I just got a 93% on my history test!"
Person B: "I got a 98%."
Person A: "Ok, you one-upped me there."
by Prox March 19, 2005